E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
metastatic hormone-naïve prostate cancer |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 27.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10036909 |
E.1.2 | Term | Prostate cancer metastatic |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the efficacy of abiraterone acetate and prednisone in patients with metastatic hormone-naïve prostate cancer treated by androgen deprivation therapy and docetaxel (with or without local radiotherapy) in terms of overall survival (OS) and radiographic progression-free survival (rPFS). |
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E.2.2 | Secondary objectives of the trial |
• Castration resistance-free survival (CRFS) • Serious Genitourinary event-free survival (S-GU-EFS) • Prostate cancer specific survival • Time to next skeletal-related event • PSA response rate • Prospective correlative study of PSA response/progression at 8 months after initiation of ADT • Time to pain progression • Time to chemotherapy for CRPC • Quality of life • Toxicity (with a specific focus on the use of long-term low-dose steroids) • Changes in bone mineral density (BMD) • Correlation of biomarkers with outcome, including the prognostic and predictive value on OS, rPFS and CRFS of a neuro-endocrine differentiation of the prostate cancer in the pathological specimen
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Biologic ancillary study: constitution of a collection
Imaging ancillary study |
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E.3 | Principal inclusion criteria |
1. Histologically or cytologically confirmed adenocarcinoma of the prostate, 2. Metastatic disease documented by a positive bone scan (any technique) and CTscan or MRI. For patients with nodal metastases only, only patients with extra-pelvic enlarged lymph nodes (pelvic lymph nodes located below the iliac bifurcation) can be included if they have either: o At least one extra-pelvic lymph node ≥ 2 cm or o extra-pelvic lymph node (s) ≥ 1 cm if the patients also have at least one pelvic lymph node ≥ 2 cm 3. Patients with ECOG ≤ 1 (patient with PS 2 due to bone pain can be accrued in the trial), 4. Life expectancy of at least 6 months, 5. Male aged ≥ 18 years old, and ≤80 years old 6. Hematology values: • Hemoglobin ≥ 10.0 g/dL, • Platelet count ≥ 100,000/mL, • Neutrophil ≥ 1500 cells/mm3 7. Biochemistry values: • Renal function: Serum creatinine < 1.5 x ULN or a calculated creatinine clearance ≥ 60 mL/min, • Serum potassium ≥ 4 mmol/L, • Liver function: - Serum bilirubin ≤ 1.5 x ULN (except for patients with documented Gilbert's disease), - AST and ALT ≤ 1.5 x ULN (and ≤ 5 ULN in case of liver metastases), • ALK-P ≤ 2.5 x ULN (in case of bone metastasis, ALK-P<1000U/L if bilirubin is normal) 8. Patients must have received ADT for a maximum of 3 months before randomization and there must be a delay of minimum 6 weeks between the start of ADT and the start of Docetaxel, 9. Patients willing to receive Docetaxel, 10. Patients might have received previous radiation therapy directed to bone lesions, 11. Patients able to take oral medication, 12. Patients who have received the information sheet and signed the informed consent form, 13. Male patients who will receive Docetaxel and/or Abiraterone acetate and have partners of childbearing potential and/or pregnant partners must use a method of birth control in addition to an adequate barrier protection (condoms) as determined to be acceptable by the study doctor during the treatment period and for 4 weeks after the last dose of abiraterone acetate and/or for 6 months after the last dose of Docetaxel, 14. Patients must be willing and able to comply with scheduled visits, treatment plan, laboratory tests and other study procedures, 15. Patients with a public or a private health insurance coverage, according to local laws for participation in clinical trials. |
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E.4 | Principal exclusion criteria |
1. Patients with previous definitive local treatment directed to the prostate primary cancer (radiotherapy, brachytherapy, radical prostatectomy, ultrasound, cryotherapy, or other). A previous transurethral resection of the prostate (TURP) and previous local treatments of metastase are allowed, 2. Prior cytotoxic chemotherapy or biological therapy for the treatment of CRPC, 3. Any chronic medical condition requiring a higher dose of corticosteroid than 5mg prednisone/prednisolone twice daily, 4. Active infection or other medical condition for which prednisone/prednisolone (corticosteroid) use would be contraindicated, 5. Previously treated with ketoconazole for prostate cancer for more than 7 days, 6. Prior systemic treatment with an azole drug (e.g. fluconazole, itraconazole) within 4 weeks of randomization, 7. Hypertension not controlled by an anti-hypertensive treatment not modified for more than 3 months (systolic BP ≥ 160 mmHg or diastolic BP ≥ 95 mmHg; 3 consecutive measures taken 5 minutes apart), 8. Severe or moderate hepatic impairment (Child – Pugh class C or B) 9. Active or symptomatic viral hepatitis or chronic liver disease (except Gilbert's disease), 10. History of pituitary or adrenal dysfunction, 11. Clinically known significant heart disease in the past 6 months as evidenced by myocardialinfarction, or arterial thrombotic events , severe or unstable angina, or New York Heart association (NYHA) Class II-IV heart disease or cardiac ejection fraction measurement of < 50% at baseline, 12. Atrial Fibrillation, or other cardiac arrhythmia requiring therapy, 13. Patient with unstable pulmonary disease (eg. Pulmonary embolism) 14. Pathological finding consistent with small cell carcinoma of the prostate, 15. History of malignancy, except non-melanoma skin cancer, with a ≥ 30% probability of recurrence within 24 months, 16. Known allergies, hypersensitivity or intolerance to the study drugs or excipients,or docetaxel, 17. Administration of an investigational therapeutic within 30 days of randomization, 18. Patients already included in another therapeutic trial involving an experimental drug, (patient in a non-experimental trial with no modification of the patient's care can be included), 19. Patients with significantly altered mental status prohibiting the understanding of the study or with psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule or any condition which, in the opinion of the investigator, would preclude participation in this trial. Those conditions should be discussed with the patient before registration in the trial, 20. Individual deprived of liberty or placed under the authority of a tutor. 21. Patients with impaired vision should undergo a prompt and complete ophtalmologic examination. Patients with Cystoid Macular Oeadema cannot be included due to a potential risk of deterioration associated with docetaxel. 22. Concomitant use of strong CYP3A4 inhibitors ( clarithromyin, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin.) |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoints of this study are overall survival (OS) and radiographic progression-free survival (rPFS). Overall survival (OS) is defined as the time from randomization to the time of death from any cause and radiographic progression-free survival (rPFS) defined as the time from randomization to the radiographic progression or death. Radiographic progression is defined according to an adapted version of Prostate Cancer Working Group 2 (PCWG2) criteria (either a RECIST progression in case of measurable lesions or the appearance of at least 2 new lesions on bone scan). In contrast to PCWG2 criteria, a second bone scan is not mandatory to confirm radiographic progression. The date of radiographic progression will be the date of progression as per the above definition. It should be noted that a patient can enter the post-CRPC follow up if progressive disease has been established by a PSA rise only, without radiographic progressive disease. In this scenario, imaging monitoring will continue every 6 months and radiographic progression may be established later.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
• Castration resistance free survival (CRFS) is defined as the time from randomization to the castrate-resistant (CRPC) status or death from any cause. CRPC is defined by cancer progression (either a confirmed PSA rise or a radiographic progression) with serum testosterone being at castrated levels (<0.50 ng/mL). A PSA rise is defined by an increased serum PSA on 2 different measurements, confirmed by a third measurement (measurement A<B<C). The minimum level of the third PSA measurement should be 0.5 ng/mL. A minimum delay of 2 weeks is recommended between measurements A and B. A delay of 3 months is recommended between measurement B and C. The date of progression will be the date of measurement C. Serum testosterone should be obtained when PSA measurement C is done. In case of progression while serum testosterone is > 0.50 ng/mL, the patient should be rapidly submitted to another method of castration (chemical or surgical) and PSA + testosterone should be tested again to confirm or not CRPC progression. Radiographic progression is defined as per the above definition. For patients alive without radiographic progression or confirmed PSA rise at the time of analysis, data will be censored at the date of last follow-up. • Serious Genitourinary event-free survival (S-GU-EFS) is defined as the time from randomization to the first occurrence of one of the following events : urinary retention with need for a urinary catheter, suprapubic catheter, double J stent, nephrostomy, treatment of the prostate by radiotherapy (except that by randomization in arms C and D) or trans-urethral resection of the prostate (TURP), prostatectomy or death. It is assumed that prostate radiotherapy (and abiraterone) may prevent or delay these serious genitourinary events. For patients alive without Serious Genitourinary Event at the time of analysis, data will be censored at the date of last follow-up. • The prostate cancer-specific survival will be calculated from the date of randomization to the date of the death due to prostate cancer. For patients alive at the time of analysis, or who died from a cause other than prostate cancer, data will be censored at the date of last follow-up, • The time to next skeletal-related event will be defined by either a fracture or a bone pain requiring radiation therapy or a spinal cord compression or a preventive surgery to the bones. Events will be evaluated by investigators. No systematic X-Ray will be perform • PSA response rate will be assessed using a waterfall plot. Complete PSA response is defined by an undetectable serum PSA level (<0.2 ng/mL). • The prospective correlative study of PSA response/progression will be evaluate at 8 months after initiation of ADT, • The time to pain progression will be evaluated by questionnaires (BPI-SF) and calculated from the date of randomization to the first date the patient experiences a BPI-SF increase by ≥ 30% from baseline in the BPI-SF worst pain intensity (items 3) observed at 2 consecutive evaluations ≥ 4 weeks apart. • The time to chemotherapy will be calculated from the date of randomization to the date of the first use of chemotherapy treatment for CRPC • Quality of life will be evaluated using the FACT-P and QLQ-C30 questionnaires. • Toxicity (with a specific focus on the use of long-term low-dose steroids) will be evaluated according to NCI-CTCAE v4.0 • Bone loss will be evaluated by bone mineral density (BMD) to determine if patients receiving Abiraterone acetate and prednisone and/or radiotherapy have an increase risk • Correlation of biomarkers with outcome, including the prognostic and predictive value on OS, rPFS and CRFS of a neuro-endocrine differentiation of the prostate cancer in the pathological specimen.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
androgen deprivation therapy with or without local radiotherapy with or without abiraterone acetate |
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E.8.2.4 | Number of treatment arms in the trial | 4 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 90 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Switzerland |
Israel |
Belgium |
Denmark |
Germany |
Greece |
Ireland |
Italy |
Netherlands |
Poland |
Spain |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 10 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 10 |